<template>
  <!-- 主体部分 -->
  <section class="main">
    <input id="toggle-all" class="toggle-all" type="checkbox" v-model="isAll" />
    <label for="toggle-all">Mark all as complete</label>
    <ul class="todo-list">
      <!-- 当任务已完成，可以给 li 加上 completed 类，会让元素加上删除线 -->
      <li v-for="item in list" :key="item.id" :class="{ completed: item.flag }">
        <div class="view">
          <input
            class="toggle"
            type="checkbox"
            :checked="item.flag"
            @change="setFlag($event, item.id)"
          />
          <label>{{ item.name }}</label>
          <button class="destroy" @click="delList(item.id)"></button>
        </div>
      </li>
    </ul>
  </section>
</template>
 
<script>
export default {
  props: ['list'],
  data() {
    return {}
  },
  methods: {
    setFlag(e, id) {
      this.$emit('setFlag', e.target.checked, id)
    },
    delList(id) {
      this.$emit('delList', id)
    }
  },
  computed: {
    get() {
      return this.list.every((item) => item.flag)
    },
    set(value) {
      this.$emit('setAll', value)
    }
  }
}
</script>

<style scoped>
</style>